#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/inotify.h>

#define EVENT_SIZE  ( sizeof(struct inotify_event) )
#define BUF_LEN     ( 1024 * ( EVENT_SIZE + 16 ) )

int main( int argc, char **argv )
{
	int length, i = 0;
	int fd;
	int wd;
	char buffer[BUF_LEN];

	fd = inotify_init();

	if( fd < 0 ) {
		perror( "inotify_init" );
	}

	wd = inotify_add_watch( fd, "/home/liubin/tmp",
			IN_MODIFY | IN_CREATE | IN_DELETE );
	length = read( fd, buffer, BUF_LEN );

	if( length < 0 ) {
		perror( "read" );
	}

	while( i < length ) {
		struct inotify_event *event = ( struct inotify_event * )&buffer[ i ];
		if( event->len ) {
			if( event->mask & IN_CREATE ) {
				if( event->mask & IN_ISDIR ) {
					printf( "The directory %s was created.\n", event->name );
				}
				else {
					printf( "The file %s was created.\n", event->name );
				}
			}
			else if( event->mask & IN_DELETE ) {
				if( event->mask & IN_ISDIR ) {
					printf( "The directory %s was deleted.\n", event->name );
				}
				else {
					printf( "The file %s was deleted.\n", event->name );
				}
			}
			else if( event->mask & IN_MODIFY ) {
				if( event->mask & IN_ISDIR ) {
					printf( "The directory %s was modified.\n", event->name );
				}
				else {
					printf( "The file %s was modified.\n", event->name );
				}
			}
		}
		i += EVENT_SIZE + event->len;
	}

	( void )inotify_rm_watch( fd, wd );
	( void )close( fd );

	exit( 0 );
}

